Mystery Manga

Ecchi , Romance , Shounen , Supernatural , Comedy ,... Status: Completed Ojiichan wa Shounen Tantei Chapter 35

Mystery , Psychological , Shounen Status: Ongoing Okitegami Kyouko No Bibouroku Chapter 15

Drama , Mystery , School life , Shounen , Supernatural Status: Ongoing Okuru Kotoba Chapter 14

Drama , Mystery , Psychological , Seinen Status: Completed Old Boy Chapter 80

Action , Fantasy , Romance , Mystery , Manhwa Status: Ongoing Olgami Chapter 204

Romance , Drama , Supernatural , Mystery , Psychological ,... Status: Completed Omae Ga Sekai o Kowashitai Nara Chapter 17

Action , Adventure , Drama , Fantasy , Harem ,... Status: Ongoing On A Deserted Island With Beautiful Sisters Chapter 21

Action , Adventure , Drama , Horror , Mystery ,... Status: Completed One Day In The Life Of Ivan Dejavu Chapter 9

Action , Fantasy , Manga , Shounen , Drama ,... Status: Completed One Piece Chapter 1131

Action , Mystery , Sci fi , Martial Arts Status: Ongoing One Way Chapter 2

Romance , Shoujo , Drama , Supernatural , Comedy ,... Status: Completed One Winter Chapter 8

Mystery Status: Ongoing One-Armed Amy Chapter 1

Action , Comedy , Fantasy , Mature , Mystery ,... Status: Ongoing Onepunch-Man Chapter 208

Action , Fantasy , Mystery , Horror , Isekai Status: Ongoing Only I Know That the World Will End Chapter 94

Action , Adventure , Fantasy , Harem , Horror ,... Status: Ongoing Only I Know The World Is Ending And Getting Killed By Rampaging Beasts Only Makes Me Stronger Chapter 66

Action , Mystery , Shoujo Status: Ongoing Onohara Henshindou Chapter 1

Action , Shounen , Mystery , Horror Status: Completed Ookami Kakushi - Fukahi no Shou Chapter 2.1

Comedy , Drama , Mystery , Seinen , Slice of life Status: Ongoing Op: Yoake Itaru No Iro No Nai Hibi Chapter 5.1

Romance , Drama , Mystery , Josei , Horror ,... Status: Completed Opera no Kaijin (JET) Chapter 1

Romance , Shoujo , Drama , School Life , Mystery ,... Status: Completed Orange (TAKANO Ichigo) Chapter 25

Harem , Romance , Shoujo , Drama , School Life ,... Status: Completed Ordinary School Chapter 5

Mystery , Seinen Status: Completed Ore ga Doutei o Sutetara Shinu Ken ni Tsuite Chapter 22

Drama , Mystery , Psychological Status: Ongoing Ore no Genjitsu wa Ren’ai Game?? ka to Omottara Inochigake no Game datta Chapter 78

Fantasy , Supernatural , Comedy , Mystery , Adventure Status: Completed Ore to Kawazu-san no Isekai Hourouki Chapter 40

Drama , Mystery , Webtoons Status: Ongoing Original Sin Chapter 19

Drama , Mystery , Psychological , Horror Status: Completed Orochi Chapter 9

Drama , Supernatural , Comedy , Mystery , Psychological ,... Status: Ongoing Oshi no Ko Chapter 166

Action , Fantasy , Drama , Mystery , Psychological ,... Status: Ongoing Otherworldly Record of the Magic Stone - Aisha's Salvation Chapter 3

Romance , Comedy , Mystery , Seinen Status: Completed Ottori Sousa Chapter 1.5

Action , Fantasy , Shounen , Mystery , Adventure Status: Completed Ou Dorobou Jing Chapter 37.5

Drama , Horror , Mature , Mystery , School life ,... Status: Ongoing Ou-Sama Game - Shuukyoku Chapter 28

Comedy , Fantasy , Mystery , Shounen , Supernatural Status: Ongoing Ougon Musoukyoku Chapter 6

Romance , Shounen , Supernatural , Mystery , Tragedy Status: Completed Oukoku Game Chapter 33

Drama , Gender bender , Historical , Josei , Mystery Status: Ongoing Oukoku No Ko Chapter 6.1

Drama , Mystery , Psychological Status: Ongoing Our Amnesia Chapter 30

Drama , School Life , Comedy , Mystery Status: Ongoing Our Classmate Sookgyung Chapter 13

Fantasy , Mystery , Romance Status: Ongoing Our House Is A Haunted Rental Bookstorethe Spirit Realm Is The World Where Spirits Reside. In This World Filled With Man-Eating Spirits And Where The Sun Doesn’T Shine, There Lives A Single Human. S Chapter 4

Action , Drama , Fantasy , Horror , Martial arts ,... Status: Ongoing Our Idol Sangeun Chapter 60

Comedy , Fantasy , Mystery , Romance , Shoujo ,... Status: Ongoing Our Pampered Sister's Secretly A Big Boss Chapter 209

Action , Adventure , Comedy , Cooking , Doujinshi ,... Status: Ongoing Our Relationship Is... Chapter 69

Action , Drama , Mystery , Seinen Status: Completed Ouroboros Chapter 133.5

Drama , School Life , Mystery , Seinen , Horror Status: Completed Ousama Game Chapter 13